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Imported Upstream version 5.18.0.167

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Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a
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Xamarin Public Jenkins (auto-signing)
2018-10-20 08:25:10 +00:00
parent e19d552987
commit b084638f15
28489 changed files with 184 additions and 3866856 deletions
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62
external/llvm/lib/Target/Hexagon/RDFCopy.h vendored
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//===- RDFCopy.h ------------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_HEXAGON_RDFCOPY_H
#define LLVM_LIB_TARGET_HEXAGON_RDFCOPY_H
#include "RDFGraph.h"
#include "RDFLiveness.h"
#include "RDFRegisters.h"
#include "llvm/CodeGen/MachineFunction.h"
#include <map>
#include <vector>
namespace llvm {
class MachineBasicBlock;
class MachineDominatorTree;
class MachineInstr;
namespace rdf {
struct CopyPropagation {
CopyPropagation(DataFlowGraph &dfg) : MDT(dfg.getDT()), DFG(dfg),
L(dfg.getMF().getRegInfo(), dfg) {}
virtual ~CopyPropagation() = default;
bool run();
void trace(bool On) { Trace = On; }
bool trace() const { return Trace; }
DataFlowGraph &getDFG() { return DFG; }
using EqualityMap = std::map<RegisterRef, RegisterRef>;
virtual bool interpretAsCopy(const MachineInstr *MI, EqualityMap &EM);
private:
const MachineDominatorTree &MDT;
DataFlowGraph &DFG;
Liveness L;
bool Trace = false;
// map: statement -> (map: dst reg -> src reg)
std::map<NodeId, EqualityMap> CopyMap;
std::vector<NodeId> Copies;
void recordCopy(NodeAddr<StmtNode*> SA, EqualityMap &EM);
bool scanBlock(MachineBasicBlock *B);
NodeId getLocalReachingDef(RegisterRef RefRR, NodeAddr<InstrNode*> IA);
};
} // end namespace rdf
} // end namespace llvm
#endif // LLVM_LIB_TARGET_HEXAGON_RDFCOPY_H